No, the fire department is not responsible for fire hydrants. Your water department or utility district is in charge of hydrants and there may be a reason why they’re flowing, such as testing or maintenance. Please contact your local water department. The most common water departments serving the area are BJWSA (843-987-9200), Callawassie Island (843-987-3800), Moss Creek (Water Oak Utility – 843-837-2321), and Hilton Head PSD#1 (843-681-5525).